Practice-keyboard.



A. J. DANIEL.

PRAGTIGE KEYBOARD.

APPLICATION FILED JUNE 18,1906.

Patented May 18, 1909.

' Leach key having a circular hole 8, for refentering apertures in keys above; lower end ANNA JENNINGS UANIEL, OF ST. LOUIS, MlSSOURI PRACTICE-KEYBOARD.

Specification of Letters Patent.

Patented May is, 1909.

Application filed June 18, 1906. Serial No. 322,351.

To all whom it may concern:

Be it known that I, ANNA JENNINGS DAN- IEL, a citizen of the United States, residing at No. 2318 \Vhittemore Place, in the city of St. Louis, State of Missouri, have invented anew and useful Practice-Keyboard; and 1 do hereby declare that the following is a full, clear, and concise description of the same.

My invention relates to practice keyboards, and it consists in the novel construction and arrangements of its parts as illustrated in the drawings and hereinafter described.

The object of this invention is to provide a practice keyboard as a means for noiseless practice of finger exercises and scales, at the same time afiording the requisite training for sight and touch, and any suitable clamping means may be employed for securing the keyboard to a table or other support. r

In the accompanying drawings :Figure 1,-is a perspective view of the keyboard. Fig. 2is a perspective view of the inner and portions of the hinged sections of the keyboard. Fig. 3,-is a transverse sectional view of the keyboardcut on line 8+3 Fig. 1.

Siminal reference numerals indicate ike parts in all views.

The keys for this device, rest on flat metal springs 1, Fig. 3, which project obliquely upward, terminating in upri 'ht round posts,

of springs 2, is fitted beneath, and into continuous metal strip 3, over metal strip 5, through all of which a screw or bolt, passes to secure springs to wood support 4. At the required height over the rear ends of springs, the keys are pivotully mounted on rod 6, accurately spaced from each otherby washers ception of rod 6, the rod 6 being supported at intervals by brackets 9, which brackets take the place of washers 7, where used;

The inner end of each section 18 provided E with plate 10*11, Fig. 2, secured to wood supports beneath hinges '12; strips 13,which E prevent keys flying oif springs, are madesecure with screws to plate 10-11, at inner end, and wood upright support at outer end; wood pieces 14:, are similarly attached at the forward edges of keyboard; strip 15, is attached under white keys to front piece 14, and strip 16, is hinged to part 15, to be swung back and over the upper side of strip 15, to limit the downward movement of white keys, when desired. The posts 17, are mounted on. strip 15, at proper intervals entering apertures in the white keys as guides. The foot blocks 18, arehinged to the front piece 14, and are padded with felt, or similar mater-inland are adapted to form supports for the keyboard when swun down under it. The outer end parts of tie keyboard 19, Figs. 1-3, on 'which supports 4-15, rest are provided with upright end pieces 20, and the keyboard may be secur d to a stationary object by any suitable clamp as 21, indicated by dotted lines in Fig. 1. The keyboard is also provided with hooks 22, by means of which it may be rested on the hinge of piano lid, or other similar support.

From the above description it is obvious that a practice keyboard is provided which vcan be noiselessly. and effectively used for practice purposes in acquiring speed and execution.

What I claim as new and desire to secure by Letters Patent, is:-

A practice keyboard comprising sections hinged together, rods holding the keys, fiat metal springs rigidly secured beneath the rear ends of the keys and projecting forward and npward with a uniform slant and strength, and having their front ends round and upright, on which the keys rest; each section having foot rests and 'hook members attached. all substantially as shown and described and for the purpose set forth.

ANNA JENNINGS DANIEL.

Witnesses Y. J. PATTEE, FRANK Y. GLADNEY. 

